EP0976946B1 - Moteur électromagnétique et dispositif de controle actif des vibrations comportant au moins un tel moteur. - Google Patents

Moteur électromagnétique et dispositif de controle actif des vibrations comportant au moins un tel moteur. Download PDF

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Publication number
EP0976946B1
EP0976946B1 EP99401851A EP99401851A EP0976946B1 EP 0976946 B1 EP0976946 B1 EP 0976946B1 EP 99401851 A EP99401851 A EP 99401851A EP 99401851 A EP99401851 A EP 99401851A EP 0976946 B1 EP0976946 B1 EP 0976946B1
Authority
EP
European Patent Office
Prior art keywords
actuators
motor
axis
motor according
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99401851A
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German (de)
English (en)
French (fr)
Other versions
EP0976946A1 (fr
Inventor
Michel Pompei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hutchinson SA
Original Assignee
Hutchinson SA
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Filing date
Publication date
Application filed by Hutchinson SA filed Critical Hutchinson SA
Priority to DK99401851T priority Critical patent/DK0976946T3/da
Publication of EP0976946A1 publication Critical patent/EP0976946A1/fr
Application granted granted Critical
Publication of EP0976946B1 publication Critical patent/EP0976946B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/12—Arrangement of engine supports
    • B60K5/1283—Adjustable supports, e.g. the mounting or the characteristics being adjustable
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/12—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/18—Machines moving with multiple degrees of freedom

Definitions

  • the present invention relates mainly to an electromagnetic motor, especially to a linear motor and an active control device vibrations comprising at least one such motor.
  • a linear motor can be produced with at minus an electromagnet attracting a pole plate.
  • opposite direction forces are obtained in such an engine, either by the use of an electromagnet ensuring, by attraction of a polar plate, the displacement of the pole plate or electromagnet depending on whether one or the other is made mobile in the first direction and elastic return means acting in the opposite direction, unsuitable solution if we want to be able to control displacements in both directions, either by setting work of two aligned electromagnets, each attractive a polar plate arranged opposite.
  • This last solution leads to linear motors of a length important.
  • such motors do not allow ensure travel along several axes and the assembly of such motors oriented along axes different leads to a particularly assembly complex and bulky.
  • the displacement of the polar plate or the electromagnet depending on whether one or the other has been returned mobile can be used to be transmitted to another mechanical organ. It goes without saying that the moving part is statically maintained either by mechanical guidance or by an elastic suspension. In the latter case, at beyond the natural frequency of this suspension, the mass of the movable part serves as a support to introduce the effort.
  • a motor according to the claim 1 the structure of which avoids align a plurality of electromagnetic actuators, typically coils or electromagnets, like this is the case in US Patent 5,091,710 which relates to a electromagnetic motor with four actuators aligned in pairs and organized along two axes parallel.
  • the electromagnetic actuators of the engine according to the present invention have two parallel axes together.
  • FIG 1 we can see a motor linear 1 of known type comprenaht, mounted in a carcass or a housing 3, a movable assembly 5 forming inertial mass comprising two electromagnets 7.1 and 7.2 mounted head to tail in the extension one of the other and aligned along a common axis 9.
  • the electromagnet 7.1 attracts, on order, i.e. when it is powered by an electric current, a pole plate 11.1 secured to the casing 3 opposite this electromagnet 7.1.
  • the force of attraction ensures a displacement of the inertial mass 5 according to the arrow 13.1.
  • the electromagnet 7.2 attracts, on command, that is to say when it is powered by a current electric, an 11.2 pole plate secured to the housing 3 facing this electromagnet 7.2. Strength of attraction ensures a displacement of the inertial mass 5 according to arrow 13.2.
  • a electromagnetic motor 15 comprising, mounted in a carcass or a housing 17, a mobile assembly forming inertial mass 19 comprising two actuators 21.1 and 21.2 placed side by side.
  • Actuators 21.1 and 21.2 are for example of the electromagnets or coils type electromagnetic.
  • the two actuators 21.1 and 21.2 are arranged along two parallel axes 23.1 and 23.2. The side by side arrangement, with the axes parallel, reduces the length of the mass inertial 19, and consequently, the size of the motor
  • the two actuators 21.1 and 21.2 are arranged head to tail, each being susceptible to take action in the opposite direction.
  • a polar plate 25.1, typically made of silicon steel magnetic sheet is secured to the housing 17 opposite the actuator 21.1.
  • An electric power supply of the actuator 21.1 causes the attraction of the plate 25.1 polar by this actuator, and consequently a displacement of the inertial mass 19 according to the arrow 27.1, and a force.
  • a 25.2 pole plate typically made of sheet metal magnetic silicon steel is secured to the box 17 opposite the actuator 21.2
  • a electric power supply to actuator 21.2 causes the attraction of the polar plate 25.2 by this actuator, and consequently a displacement of the mass inertial 19 according to arrow 27.2, and a force.
  • the forces generated by the actuators 21.1 and 21.2 also generate a torque of the inertial mass 19.
  • the embodiment of Figure 3 has four actuators 21.1 axis 23.1, 21.2 axis 23.2, 21.3 axis 23.3 and 21.4 axis 23.4, regularly distributed over the inertial mass 19 for example in the form of a rectangular parallelepiped.
  • 23 'be a passing axis by the center of gravity of the inertial mass 19 and normal to its main faces 29.1 and 29.2.
  • the actuators arranged symmetrically by relative to the axis 23 ′ are advantageously oriented towards the same main face of inertial mass 19 as illustrated by arrows 27.1 to 27.4 symbolizing the attractive forces exerted by the actuators 21.1 to 21.4.
  • the actuators 21.1 and 21.2 are oriented towards the upper face 29.1 while the actuators 21.3 and 21.4 are oriented towards the face lower 29.2.
  • the actuators working in this direction and in the same direction are arranged symmetrically to the axis of actuator work, this to avoid generating a couple.
  • the thickness e of the inertial mass 19 is substantially equal to the height of the actuators 21.1 to 21.4. In one such case, these actuators extend substantially over the entire thickness of the inertial mass 19. As a variant, the thickness e is greater than the length of the actuators 21.1 to 21.4. In such a case, it is advantageous to bring the actuators closer to the face main of inertial mass 19 towards which they are oriented.
  • an inertial mass 19 comprising actuators allowing the displacement of this inertial mass along three axes perpendicular.
  • the inertial mass 19 comprises four actuators 21.5 to 21.8 aligned and opposite two by two and arranged at mid-thickness of the inertial mass 19 parallel to the diagonals of the main faces 29.1 and 29.2.
  • the actuators 21.6 and 21.8 on the one hand and 21.5 and 21.7 on the other hand are aligned which can lead to an increase in the size of the inertial mass.
  • this is more admissible in an engine capable of operating in two or three orthogonal axes insofar as we recover for house additional actuators available space between the actuators corresponding to the other axes.
  • the implementation work of four actuators of parallel axes (analogous to the actuators 21.1 to 21.4 of the inertial mass of the Figure 3) by axis of movement does not go outside the framework of the present invention.
  • the mass inertial 19 could for example be cubic in shape, and would include twelve regularly distributed actuators relative to the axes passing through the center of gravity of the inertial mass but, preferably offset by in order to make the best use of the volume available in the inertial mass.
  • the engine according to the present invention further comprises means for feeding current to the actuators to be activated, means of elastic suspension corresponding to the number of axes active, in particular blade suspension means or, advantageously suspension means omnidirectional elastomer as well as possible inertial mass position sensors 19 in the box 17, so as to allow a control if this is desired.
  • the present invention is not limited to the arrangement of actuators on the inertial mass but also includes variants of embodiment in which the actuators are secured to the housing 17 instead of pole plates, the moving body formed by the mass inertial 19 carrying one or more pole plates attracted to the various magnets.
  • FIGs 6 to 10 we can see a first preferred embodiment of an engine according to the present invention capable of operating according to three perpendicular axes, arranged in a housing compact low-rise in the shape of a rectangular base with square base.
  • This form of housing allows the motor to be superimposed according to the present invention with other devices, in particular with a pad 31 made of a vibration absorbing material, advantageously made of elastomer, for example rubber natural.
  • a set of such studs can serve as a support machines likely to generate vibrations, such as rotating machines. Vibrations are very strongly attenuated by the studs 31.
  • the motor according to the present invention can be integrated into a active residual vibration control device transmitted by pad 31, an example of which is illustrated in Figure 16.
  • the engine of FIGS. 6 to 10 comprises a plate 33 support for electromagnetic actuators comprising an upper element 33.1 and an element lower 33.2, advantageously symmetrical with respect to a horizontal plane.
  • Plate 33 receives the actuators 21.1 to 21.8 with axes arranged, so as to obtain, on order, the desired movements.
  • the plate 33 is octagonal and has eight recesses for receiving the actuators.
  • the plate fitted with actuators ( Figures 6, 7, 9 and 10) is arranged in a carcass cylindrical ( Figure 7) or, advantageously, in a case having the shape of a rectangular parallelepiped of square base ( Figures 8, 9 and 10).
  • Polar plates 25.5, 25.6, 25.7 and 25.8 are joined to the vertical walls of the housing 17.
  • Polar plates 25.1 and 25.2 are secured with a plate upper engine closure 35 according to this invention.
  • Polar plates 25.3 and 25.4 are secured with a bottom closure plate 37 of the engine according to the present invention.
  • the housing 17 also receives means of suspension of plate 33 for example four studs made of elastomer 39 (the only one of which is illustrated on the Figures 6 and 7) and / or elastic stops 41 also made of elastomer.
  • the suspension can be obtained by springs, in particular in steel.
  • the actuators 21.1 to 21.8 are arranged between the two parts 33.1 and 33.2 of the plate 33 before their joining.
  • the assembled plate 33 is placed in the housing 17.
  • the lower and upper plates as well as, advantageously, a support plate for the stud 31, are assembled for example by bolts and nuts (not shown) passing through openings 43 arranged at the four corners of these elements.
  • Motor units 15 - fixing stud 31 can then be secured with the machine support whose we want to control vibration. We set up the machine and perform the electrical connections desired.
  • FIGs 11 to 15 we can see a variant of the motor 15 according to the present invention comprising a central opening for receiving a stud 31.
  • This central opening is provided both in the bottom plate 37, the plate 33 only in the plate upper 35.
  • the vertical extension of the motor housing according to the present invention illustrated in Figures 12 to 15 is less than the height of the stud 31 so as to avoid direct contact between the rotating machine or other which we want to eliminate the vibrations and the motor 15 according to the present invention.
  • the engine of Figures 11 to 15 can be easily adapted to existing machines resting on studs. This implementation is carried out from the following way. We remove or lift the machine whose we want to eliminate the vibrations, we surround the studs with the motors according to the present invention, one rests the machine on the studs surrounded by the motors according to the present invention and we make the connections desired electrics.
  • FIG 16 we can see a device active vibration control according to this invention, remarkable in that it includes motors 15 according to the present invention, for example motors as illustrated in Figures 6 to 10 of this request.
  • a machine 45 for example a motor, rests on a floor 47 by means of four studs 31 vibration damping, each based on a motor 15 according to the present invention (only two are visible in the figure).
  • the motors 15 of FIGS. 11 to 15 surround studs 31.
  • a first vibration sensor 49 is disposed on the machine 45 and a second vibration sensor 51 is disposed on the floor 47.
  • the sensors 49 and 51 are connected to a computer 53 developing in real time control signals of various actuators of the motors 15, creating vibrations of equal amplitude and in opposition in phase with those generated by the operation of the machine 45.
  • the control signals are applied, advantageously, through amplifiers 55.1 to 55.4 to the motors 15 concerned.
  • the present invention applies mainly vibration control and finds its industry application for the suspension of rotating machines, transformers, machines measure, etc ... It can also be used as vibration generator for machines using vibrators or to control a noise by generating structure vibrations that emit noise in phase opposition.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Vibration Prevention Devices (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP99401851A 1998-07-30 1999-07-22 Moteur électromagnétique et dispositif de controle actif des vibrations comportant au moins un tel moteur. Expired - Lifetime EP0976946B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK99401851T DK0976946T3 (da) 1998-07-30 1999-07-22 Elektromagnetisk motor og indretning til aktiv vibrationskontrol omfattende mindst en sådan motor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9809760 1998-07-30
FR9809760A FR2781938B1 (fr) 1998-07-30 1998-07-30 Moteur electromagnetique et dispositif de controle actif des vibrations comportant au moins un tel moteur

Publications (2)

Publication Number Publication Date
EP0976946A1 EP0976946A1 (fr) 2000-02-02
EP0976946B1 true EP0976946B1 (fr) 2004-09-15

Family

ID=9529198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99401851A Expired - Lifetime EP0976946B1 (fr) 1998-07-30 1999-07-22 Moteur électromagnétique et dispositif de controle actif des vibrations comportant au moins un tel moteur.

Country Status (8)

Country Link
US (1) US6064129A (ja)
EP (1) EP0976946B1 (ja)
JP (1) JP2000051790A (ja)
AT (1) ATE276454T1 (ja)
DE (1) DE69920116T2 (ja)
DK (1) DK0976946T3 (ja)
ES (1) ES2229645T3 (ja)
FR (1) FR2781938B1 (ja)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10117817A1 (de) 2001-04-10 2002-10-17 Bayerische Motoren Werke Ag Vorrichtung zur Unterdrückung von Schwingungen an einem bewegten System
US6914351B2 (en) 2003-07-02 2005-07-05 Tiax Llc Linear electrical machine for electric power generation or motive drive
US20060236456A1 (en) * 2005-03-03 2006-10-26 Beale Robert S Patient transport method and apparatus
US20070290632A1 (en) * 2006-06-15 2007-12-20 Progym International Ltd. Dual-motor whole body vibration machine with tilt mode
US7769281B1 (en) * 2006-07-18 2010-08-03 Siimpel Corporation Stage with built-in damping
EP2090452A4 (en) * 2006-12-06 2015-05-06 Sinfonia Technology Co Ltd VIBRATION DAMPING DEVICE, METHOD FOR CONTROLLING VIBRATION DAMPING DEVICE, METHOD FOR DISPLACING CORRECTION OF VIBRATION DAMPING DEVICE AND BLADE SPRING
ATE549785T1 (de) * 2006-12-21 2012-03-15 Saab Ab Ampg-vorrichtung zur stromerzeugung aus schwingungen, ampg-vorrichtungsanordnung sowie verfahren zur optimierung besagter stromerzeugung
EP2146422A1 (en) 2008-06-06 2010-01-20 Jose Salvador Olmo Electromagnetic motor self-powered by an external AC/DC generator
US8290630B2 (en) * 2008-09-30 2012-10-16 Rockwell Automation Technologies, Inc. Condition monitoring parameter normalization system and method
KR102498082B1 (ko) 2015-01-07 2023-02-08 배 시스템즈 피엘시 전기기계 액츄에이터의 또한 그에 관한 개선
GB2533943B (en) * 2015-01-07 2020-09-23 Bae Systems Plc Improvements in and relating to electromechanical actuators
WO2018030269A1 (ja) * 2016-08-09 2018-02-15 日本電産サンキョー株式会社 振動発生装置
US11028898B2 (en) * 2019-01-11 2021-06-08 The Boeing Company Couplings that actively stabilize vibrations
WO2021000074A1 (zh) * 2019-06-29 2021-01-07 瑞声声学科技(深圳)有限公司 一种振动马达
US20220407392A1 (en) * 2021-06-22 2022-12-22 Olvin Ivan Castro Martinez Electric Motor by Reciprocating System

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Also Published As

Publication number Publication date
DK0976946T3 (da) 2005-01-31
ES2229645T3 (es) 2005-04-16
ATE276454T1 (de) 2004-10-15
FR2781938B1 (fr) 2003-09-19
EP0976946A1 (fr) 2000-02-02
US6064129A (en) 2000-05-16
FR2781938A1 (fr) 2000-02-04
DE69920116T2 (de) 2005-11-17
JP2000051790A (ja) 2000-02-22
DE69920116D1 (de) 2004-10-21

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